Patent · US Expired

Projection-type display device

US6059413A · kind A · utility

18Cited by
8References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 30, 1998
Grant dateMay 9, 2000
Priority date
Expiry dateSep 30, 2018

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N5/7408
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A projection-type display device of the present invention includes a projection unit for projecting an image to be displayed on a screen and an angle-of-projection correcting mechanism supporting the projection unit. The angle-of-projection correcting mechanism is located at a side surface of the projection unit, instead of on a bottom surface thereof, to correct the projection angle of the image projected from the projection unit onto the screen, while reducing the size of the projection-type display device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.